Patents by Inventor Ryoutarou Todokoro

Ryoutarou Todokoro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Light scanning device reducing deformation of f? theta lens and housing and image forming apparatus with the same
    Patent number: 9176322
    Abstract: A light scanning device include a housing and an f? lens. The housing includes a bottom plate and a sidewall disposed upright at the bottom plate. The rotating polyhedron and the f? lens are each installed at the bottom plate of the housing. The rotating polyhedron is configured to deflect and scan light beam. Light beam deflected and scanned by the rotating polyhedron transmits the f? lens. The bottom plate of the housing includes a stepped portion at a part corresponding to a peripheral area of the f? lens. The stepped portion is formed lower than a top surface of the bottom plate. The stepped portion has a ridge line in a concavo-convex shape.
    Type: Grant
    Filed: September 27, 2014
    Date of Patent: November 3, 2015
    Assignee: Kyocera Document Solutions Inc.
    Inventor: Ryoutarou Todokoro
  • Light Scanning Device Reducing Deformation of ftheta Lens and Housing and Image Forming Apparatus with the Same
    Publication number: 20150092002
    Abstract: A light scanning device include a housing and an f? lens. The housing includes a bottom plate and a sidewall disposed upright at the bottom plate. The rotating polyhedron and the f? lens are each installed at the bottom plate of the housing. The rotating polyhedron is configured to deflect and scan light beam. Light beam deflected and scanned by the rotating polyhedron transmits the f? lens. The bottom plate of the housing includes a stepped portion at a part corresponding to a peripheral area of the f? lens. The stepped portion is formed lower than a top surface of the bottom plate. The stepped portion has a ridge line in a concavo-convex shape.
    Type: Application
    Filed: September 27, 2014
    Publication date: April 2, 2015
    Inventor: Ryoutarou Todokoro